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Therese A Stukel

Publications and source records attributed to Therese A Stukel.

33 records · Page 2Linked to original sources

Long-term outcomes of regional variations in intensity of invasive vs medical management of Medicare Patients with acute myocardial infarction.

CONTEXT: The health and policy implications of the marked regional variations in intensity of invasive compared with medical management of patients with acute myocardial infarction (AMI) are unknown. OBJECTIVES: To evaluate patient clinical characteristics associated with receiving more intensive treatment; and to assess whether AMI patients residing in regions with more intensive invasive treatment and management strategies have better long-term survival than those residing in regions with more intensive medical management strategies. DESIGN, SETTING, AND PATIENTS: National cohort study of 158,831 elderly Medicare patients hospitalized with first episode of confirmed AMI in 1994-1995, followed up for 7 years (mean, 3.6 years), according to the intensity of invasive management (performance of cardiac catheterization within 30 days) and medical management (prescription of beta-blockers to appropriate patients at discharge) in their region of residence. Baseline chart reviews were drawn from the Cooperative Cardiovascular Project and linked to Medicare health administrative data. MAIN OUTCOME MEASURE: Long-term survival over 7 years of follow-up. RESULTS: Patient baseline AMI severity was similar across regions. In all regions, younger and healthier patients were more likely than older high-risk patients to receive invasive treatment and medical therapy. Regions with more invasive treatment practice styles had more cardiac catheterization laboratory capacity; patients in these regions were more likely to receive interventional treatment, regardless of age, clinical indication, or risk profile. The absolute unadjusted difference in 7-year survival between regions providing the highest rates of both invasive and medical management strategies and those providing the lowest rates of both was 6.2%. For both ST- and non-ST-segment elevation AMI patients, survival improved with regional intensity of both invasive and medical management. In areas with higher rates of medical management, there appeared to be little or no improvement in survival associated with increased invasive treatment. CONCLUSIONS: In elderly Medicare patients with AMI, more intensive medical treatment provides population survival benefits. However, routine use of more costly and invasive treatment strategies may not be associated with an overall population benefit beyond that seen with excellent medical management. Efforts should focus on directing invasive clinical resources to patients with the greatest expected benefit.

Adrenergic beta-Antagonists↗

Do cancer centers designated by the National Cancer Institute have better surgical outcomes?

BACKGROUND: The National Cancer Institute (NCI) designates cancer centers as regional centers of excellence in research and patient care. Although these centers often advertise their superior outcomes, their relative performance has not been examined empirically. In the current study, the authors assessed whether patients at NCI cancer centers compared with patients at control hospitals had lower mortality rates after major cancer surgery. METHODS: Using the national Medicare database (1994-1999), the authors assessed surgical mortality and late survival rates for 63,860 elderly patients undergoing resection for lung, esophageal, gastric, pancreatic, bladder, or colon carcinoma. For assessing performance, patients treated at the 51 NCI cancer centers were compared with patients from 51 control hospitals with the highest volumes for each procedure. Mortality rates (surgical and 5-year rates) were adjusted for patient characteristics and residual differences in procedure volume. RESULTS: NCI cancer centers had lower adjusted surgical mortality rates than control hospitals for 4 of the 6 procedures, including colectomy (5.4% vs. 6.7%; P = 0.026), pulmonary resection (6.3% vs. 7.9%; P = 0.010), gastrectomy (8.0% vs. 12.2%; P < 0.001), and esophagectomy (7.9% vs. 10.9%; P = 0.027). Nonsignificant trends toward lower adjusted operative mortality rates at NCI cancer centers were also observed for cystectomy and pancreatic resection. Among patients surviving surgery, however, there were no important differences in subsequent 5-year mortality rates between NCI cancer centers and control hospitals for any of the procedures. CONCLUSIONS: For many cancer procedures, patients undergoing surgery at NCI-designated cancer centers had lower surgical mortality rates than those treated at comparably high-volume hospitals, but similar long-term survival rates.

Adult↗

Surgeon specialty and operative mortality with lung resection.

OBJECTIVE: We sought to examine the effect of subspecialty training on operative mortality following lung resection. SUMMARY BACKGROUND DATA: While several different surgical subspecialists perform lung resection for cancer, many believe that this procedure is best performed by board-certified thoracic surgeons. METHODS: Using the national Medicare database 1998 to 1999, we identified patients undergoing lung resection (lobectomy or pneumonectomy) for lung cancer. Operating surgeons were identified by unique physician identifier codes contained in the discharge abstract. We used the American Board of Thoracic Surgery database, as well as physician practice patterns, to designate surgeons as general surgeons, cardiothoracic surgeons, or noncardiac thoracic surgeons. Using logistic regression models, we compared operative mortality across surgeon subspecialties, adjusting for patient, surgeon, and hospital characteristics. RESULTS: Overall, 25,545 Medicare patients underwent lung resection, 36% by general surgeons, 39% by cardiothoracic surgeons, and 25% by noncardiac thoracic surgeons. Patient characteristics did not differ substantially by surgeon specialty. Adjusted operative mortality rates were lowest for cardiothoracic and noncardiac thoracic surgeons (7.6% general surgeons, 5.6% cardiothoracic surgeons, 5.8% noncardiac thoracic surgeons, P = 0.001). In analyses restricted to high-volume surgeons (>20 lung resections/y), mortality rates were lowest for noncardiac thoracic surgeons (5.1% noncardiac thoracic, 5.2% cardiothoracic, and 6.1% general surgeons) (P < 0.01 for difference between general surgeons and thoracic surgeons). In analyses restricted to high-volume hospitals (>45 lung resections/y), mortality rates were again lowest for noncardiac thoracic surgeons (5.0% noncardiac thoracic, 5.3% cardiothoracic, and 6.1% general surgeons) (P < 0.01 for differences between all 3 groups). CONCLUSIONS: Operative mortality with lung resection varies by surgeon specialty. Some, but not all, of this variation in operative mortality is attributable to hospital and surgeon volume.

Aged↗

Educational epidemiology: applying population-based design and analytic approaches to study medical education.

Conducting educational research in medical schools is challenging partly because interventional controlled research designs are difficult to apply. In addition, strict accreditation requirements and student/faculty concerns about educational inequality reduce the flexibility needed to plan and execute educational experiments. Consequently, there is a paucity of rigorous and generalizable educational research to provide an evidence-guided foundation to support educational effectiveness. "Educational epidemiology," ie, the application across the physician education continuum of observational designs (eg, cross-sectional, longitudinal, cohort, and case-control studies) and randomized experimental designs (eg, randomized controlled trials, randomized crossover designs), could revolutionize the conduct of research in medical education. Furthermore, the creation of a comprehensive national network of educational epidemiologists could enhance collaboration and the development of a strong educational research foundation.

Education, Medical↗

Cyclo-oxygenase-2 inhibitors versus non-selective non-steroidal anti-inflammatory drugs and congestive heart failure outcomes in elderly patients: a population-based cohort study.

BACKGROUND: Non-selective, non-steroidal anti-inflammatory drugs (NSAIDs) are associated with an increased risk of congestive heart failure, but little is known about the cardiovascular effects of a newer group of NSAIDS called selective cyclo-oxygenase (COX)-2 inhibitors. We aimed to compare rates of admission for congestive heart failure in elderly patients who were newly dispensed COX-2 inhibitors or non-selective NSAIDs. METHODS: In this population-based retrospective cohort study we identified NSAID-naive individuals aged 66 years or older, who were started on rofecoxib (n=14,583), celecoxib (n=18,908), and non-selective NSAIDs (n=5,391), and randomly selected non-NSAID users as controls (n=100,000). FINDINGS: Relative to non-NSAID users, patients on rofecoxib and non-selective NSAIDS had an increased risk of admission for congestive heart failure (adjusted rate ratio 1.8, 95% CI 1.5-2.2, and 1.4, 1.0-1.9, respectively), but not celecoxib (1.0, 0.8-1.3). Compared with celecoxib users, admission was significantly more likely in users of non-selective NSAIDs (1.4, 1.0-1.9) and rofecoxib (1.8, 1.4-2.4). Risk of admission for rofecoxib users was higher than that for non-selective NSAID users (1.5, 1.1-2.1). Of patients with no admission in the past 3 years, only rofecoxib users were at increased risk of subsequent admission relative to controls (1.8, 1.4-2.3). INTERPRETATION: These findings suggest a higher risk of admission for congestive heart failure in users of rofecoxib and non-selective NSAIDs, but not celecoxib, relative to non-NSAID controls.

Aged↗

Changing patterns in competing causes of death in men with prostate cancer: a population based study.

PURPOSE: We examined trends in hospitalization and death in men with prostate cancer to determine whether outcomes have changed with time in men diagnosed and treated for this disorder. MATERIALS AND METHODS: A population based cohort study of 180973 patients with prostate cancer in the 1979 to 1996 Surveillance, Epidemiology and End Results cancer registry and 450448 admissions in the 1987 to 1996 Surveillance, Epidemiology and End Results-Medicare linked database were analyzed. ORs derived from logistic regression were used to assess time trends in mortality and hospitalization. Multinominal logistic regression was used to obtain the adjusted proportions of deaths due to various causes in different years. RESULTS: In men with prostate cancer the risk of death from cancer was 39.7% (OR = 0.61, 95% CI = 0.56 to 0.66), which was lower in 1995 to 1996 than in 1979 to 1980. Decreases in prostate cancer death were greater than those in cardiovascular disorders (OR = 0.85, 95% CI = 0.78 to 0.92) and evident even in men with nonlocalized disease. Overall nonprostate cancer causes of mortality increased (OR = 1.65, 95% CI = 1.52 to 1.79) and ultimately exceeded that due to prostate cancer. By 1995 to 1996 the proportion of prostate cancer deaths was similar to that of cardiovascular disorders (27.7% and 26.6%, respectively) and substantially less than that of all other sources combined (45.7%). Similar effects were observed for prostate cancer (OR = 0.40, 95% CI = 0.37 to 0.42) and nonprostate cancer (OR = 2.51, 95% CI = 2.36 to 2.68) hospitalizations. CONCLUSIONS: In men with prostate cancer decreases in prostate cancer hospitalization and mortality have been greater than those in competing diseases with time. Most deaths in patients with prostate cancer, including those with nonlocalized disease, are now due to nonprostate cancer causes.

Aged↗

Prostate-specific antigen screening in elderly men.

Although the efficacy of prostate-specific antigen (PSA) screening for prostate cancer has not been established, it is widely used. However, despite the overall controversy regarding PSA screening, there has been general agreement that elderly men (i.e., those aged 75 years or older) should not be screened. By using a nationally representative sample of 7889 men who participated in the 2000 National Health Interview Survey, we found that the rate of PSA screening among men aged 75 or older was 32.5% (95% confidence interval [CI] = 28.8% to 36.1%), which was greater than that of fecal occult blood screening among men of the same age (22.8%, 95% CI = 19.2% to 26.4%) and was comparable with that of annual Pap smear screening among women aged 75 years or older (29.0%, 95% CI = 26.6% to 31.3%). Among screened elderly men, 88.4% (95% CI = 82.3% to 92.6%) reported that their doctor first suggested screening and 66.5% (95% CI = 59.7% to 73.3%) reported that the risks and benefits of screening were discussed before screening. We conclude that strategies are needed to increase understanding of the risks and benefits of PSA screening among elderly men.

Aged↗

Surgeon volume and operative mortality in the United States.

BACKGROUND: Although the relation between hospital volume and surgical mortality is well established, for most procedures, the relative importance of the experience of the operating surgeon is uncertain. METHODS: Using information from the national Medicare claims data base for 1998 through 1999, we examined mortality among all 474,108 patients who underwent one of eight cardiovascular procedures or cancer resections. Using nested regression models, we examined the relations between operative mortality and surgeon volume and hospital volume (each in terms of total procedures performed per year), with adjustment for characteristics of the patients and other characteristics of the providers. RESULTS: Surgeon volume was inversely related to operative mortality for all eight procedures (P=0.003 for lung resection, P<0.001 for all other procedures). The adjusted odds ratio for operative death (for patients with a low-volume surgeon vs. those with a high-volume surgeon) varied widely according to the procedure--from 1.24 for lung resection to 3.61 for pancreatic resection. Surgeon volume accounted for a large proportion of the apparent effect of the hospital volume, to an extent that varied according to the procedure: it accounted for 100 percent of the effect for aortic-valve replacement, 57 percent for elective repair of an abdominal aortic aneurysm, 55 percent for pancreatic resection, 49 percent for coronary-artery bypass grafting, 46 percent for esophagectomy, 39 percent for cystectomy, and 24 percent for lung resection. For most procedures, the mortality rate was higher among patients of low-volume surgeons than among those of high-volume surgeons, regardless of the surgical volume of the hospital in which they practiced. CONCLUSIONS: For many procedures, the observed associations between hospital volume and operative mortality are largely mediated by surgeon volume. Patients can often improve their chances of survival substantially, even at high-volume hospitals, by selecting surgeons who perform the operations frequently.

Aged↗

Hospital volume, length of stay, and readmission rates in high-risk surgery.

OBJECTIVE: Aimed at reducing surgical deaths, several recent initiatives have attempted to establish volume-based referral strategies in high-risk surgery. Although payers are leading the most visible of these efforts, it is unknown whether volume standards will also reduce resource use. METHODS: We studied postoperative length of stay and 30-day readmission rate after 14 cardiovascular and cancer procedures using the 1994-1999 national Medicare database (total n = 2.5 million). We used regression techniques to examine the relationship between length of stay, 30-day readmission, and hospital volume, adjusting for age, gender, race, comorbidity score, admission acuity, and mean social security income. RESULTS: Mean postoperative length of stay ranged from 3.4 days (carotid endarterectomy) to 19.6 days (esophagectomy). There was no consistent relationship between volume and mean length of stay; it significantly increased across volume strata for 7 of the 14 procedures and significantly decreased across volume strata for the other 7. Mean length of stay at very-low-volume and very-high-volume hospitals differed by more than 1 day for 6 procedures. Of these, the mean length of stay was shorter in high-volume hospitals for 3 procedures (pancreatic resection, esophagectomy, cystectomy), but longer for other procedures (aortic and mitral valve replacement, gastrectomy). The 30-day readmission rate also varied widely by procedure, ranging from 9.9% (nephrectomy) to 22.2% (mitral valve replacement). However, volume was not related to 30-day readmission rate with any procedure. CONCLUSION: Although hospital volume may be an important predictor of operative mortality, it is not associated with resource use as reflected by length of stay or readmission rates.

Cardiovascular Diseases↗

Natural experiment examining impact of aggressive screening and treatment on prostate cancer mortality in two fixed cohorts from Seattle area and Connecticut.

OBJECTIVE: To determine whether the more intensive screening and treatment for prostate cancer in the Seattle-Puget Sound area in 1987-90 led to lower mortality from prostate cancer than in Connecticut. DESIGN: Natural experiment comparing two fixed cohorts from 1987 to 1997. SETTING: Seattle-Puget Sound and Connecticut surveillance, epidemiology, and end results areas. PARTICIPANTS: Population based cohorts of male Medicare beneficiaries aged 65-79 drawn from the Seattle (n=94 900) and Connecticut (n=120 621) areas. MAIN OUTCOME MEASURES: Rates of screening for prostate cancer, treatment with radical prostatectomy and external beam radiotherapy, and prostate cancer specific mortality. RESULTS: The prostate specific antigen testing rate in Seattle was 5.39 (95% confidence interval 4.76 to 6.11) times that of Connecticut, and the prostate biopsy rate was 2.20 (1.81 to 2.68) times that of Connecticut during 1987-90. The 10 year cumulative incidences of radical prostatectomy and external beam radiotherapy up to 1996 were 2.7% and 3.9% for Seattle cohort members compared with 0.5% and 3.1% for Connecticut cohort members. The adjusted rate ratio of prostate cancer mortality up to 1997 was 1.03 (0.95 to 1.11) in Seattle compared with Connecticut. CONCLUSION: More intensive screening for prostate cancer and treatment with radical prostatectomy and external beam radiotherapy among Medicare beneficiaries in the Seattle area than in the Connecticut area was not associated with lower prostate cancer specific mortality over 11 years of follow up.

Aged↗

Hospital volume and surgical mortality in the United States.

BACKGROUND: Although numerous studies suggest that there is an inverse relation between hospital volume of surgical procedures and surgical mortality, the relative importance of hospital volume in various surgical procedures is disputed. METHODS: Using information from the national Medicare claims data base and the Nationwide Inpatient Sample, we examined the mortality associated with six different types of cardiovascular procedures and eight types of major cancer resections between 1994 and 1999 (total number of procedures, 2.5 million). Regression techniques were used to describe relations between hospital volume (total number of procedures performed per year) and mortality (in-hospital or within 30 days), with adjustment for characteristics of the patients. RESULTS: Mortality decreased as volume increased for all 14 types of procedures, but the relative importance of volume varied markedly according to the type of procedure. Absolute differences in adjusted mortality rates between very-low-volume hospitals and very-high-volume hospitals ranged from over 12 percent (for pancreatic resection, 16.3 percent vs. 3.8 percent) to only 0.2 percent (for carotid endarterectomy, 1.7 percent vs. 1.5 percent). The absolute differences in adjusted mortality rates between very-low-volume hospitals and very-high-volume hospitals were greater than 5 percent for esophagectomy and pneumonectomy, 2 to 5 percent for gastrectomy, cystectomy, repair of a nonruptured abdominal aneurysm, and replacement of an aortic or mitral valve, and less than 2 percent for coronary-artery bypass grafting, lower-extremity bypass, colectomy, lobectomy, and nephrectomy. CONCLUSIONS: In the absence of other information about the quality of surgery at the hospitals near them, Medicare patients undergoing selected cardiovascular or cancer procedures can significantly reduce their risk of operative death by selecting a high-volume hospital.

Aged↗

Is surgery getting safer? National trends in operative mortality.

BACKGROUND: Although mortality rates for some cardiovascular procedures seem to have declined, it is unclear whether other high-risk procedures are becoming safer over time. STUDY DESIGN: We examined national trends between 1994 and 1999 in operative mortality for 14 high-risk cardiovascular and cancer procedures in the national population of Medicare beneficiaries over age 65. Secular trends were examined using logistic regression adjusting for age, gender, race, socioeconomic status, admission acuity, comorbidities, and hospital volume. RESULTS: Observed mortality rates varied widely across the 14 procedures, from 2% (carotid endarterectomy) to 16% (esophagectomy). Over the 6-year study period, average patient age increased for all procedures, and patients were more likely to undergo operation at high-volume hospitals for some procedures (pancreatic resection, esophagectomy, cystectomy, and pneumonectomy). After accounting for these changes, operative mortality declined significantly for three cardiovascular procedures, as evidenced by adjusted odds ratios (OR) for the 6-year effect on operative mortality (coronary artery bypass graft OR = 0.85, 95% confidence interval [CI] 0.81 to 0.88; carotid endarterectomy OR = 0.86,95% CI 0.80 to 0.93; mitral valve replacement OR = 0.89, 95% CI 0.81 to 0.97). In contrast, operative mortality did not decline for any of the cancer procedures. In fact, adjusted mortality increased for colectomy for colon cancer (OR= 1.13, 95% CI 1.07 to 1.19). CONCLUSIONS: Although risks of some cardiovascular procedures are declining over time, there is no evidence that other types of high-risk surgery are becoming safer. These findings suggest the need for systematic efforts to monitor and improve surgical performance.

Aged↗

Adjusting surgical mortality rates for patient comorbidities: more harm than good?

Background. Studies of medical admissions have questioned the validity of using claims data to adjust for preexisting medical conditions (comorbidities), but the impact of using comorbidities from claims data to risk-adjust mortality rates for high-risk surgery is not well characterized. The purpose of this study was to evaluate the relationship between comorbidities and mortality in administrative data in surgical populations and identify better risk-adjustment methods. Methods. Using the national Medicare database (1994-1997), we identified admissions for elective abdominal aortic aneurysm repair (140,577) and pancreaticoduodenectomy (10,530). We calculated the relative risk of mortality (adjusted for age, sex, race, and admission acuity) for 5 chronic conditions that are known (from clinical series) to increase the risk of postoperative mortality and are commonly used in claims-based risk-adjustment models. To explore the potential value of alternative risk-adjustment strategies, we examined relationships between surgical mortality and comorbidities using diagnosis codes identified from previous admissions. Results. Overall, in-hospital mortality for elective abdominal aortic aneurysm (AAA) repair and pancreaticoduodenectomy were 5.1% and 10.4%, respectively. For both procedures, 3 of the 5 comorbidities were associated with decreased risk of mortality: prior myocardial infarction (MI) [RR = 0.38; 95% confidence interval (CI), 0.33-0.43 for AAA; RR = 0.38; 95% CI, 0.21-0.69 for pancreaticoduodenectomy), malignancy (RR = 0.67; 95% CI, 0.59-0.76 for AAA; RR = 0.74; 95% CI, 0.45-1.21 for pancreaticoduodenectomy], and diabetes (RR = 0.76; 95% CI, 0.64-0.84 for AAA; RR = 0.59; 95% CI, 0.49-0.69 for pancreaticoduodenectomy). Using comorbidities identified from prior admissions increased the mortality risk estimates for prior MI (RR = 1.22; 95% CI, 1.08-1.38 for AAA; RR = 0.80; 95% CI, 0.49-1.30 for pancreaticoduodenectomy) and diabetes (RR = 1.41; 95% CI, 1.25-1.59 for AAA; RR = 0.94; 95% CI, 0.78-1.14 for pancreaticoduodenectomy). Conclusions. Because comorbidities coded on the index admission appear protective, incorporating them in risk-adjustment models for studies comparing surgical performance may penalize providers for taking care of sicker patients. When available, comorbidity information from prior hospitalizations may be more useful for risk adjustment.

Aortic Aneurysm, Abdominal↗

Assessment of cancer risk and environmental levels of arsenic in New Hampshire.

The Agency for Toxic Substances and Disease Registry (ATSDR) and the United States (US) Environmental Protection Agency (EPA) Office of Solid Waste and Emergency Response (OSWER) list arsenic as a major concern for Superfund sites and the environment at large. Arsenic is clearly linked to skin, bladder, and lung cancer occurrence in populations highly exposed to arsenic occupationally, medicinally, or through contaminated drinking water (Agency for Toxic Substances and Disease Registry, 1999; IARC, 1987). While these studies have identified important adverse health effects, they cannot provide risk information at lower levels of exposure such as those commonly found in the US. Additionally, precise measurement of exposure is critical to assessing risk in populations consuming relatively trace amounts of arsenic. In New Hampshire, domestic wells serve roughly 40% of the population, and about 10% of these contain arsenic concentrations in the controversial range of 10 to 50 micrograms/l. New Hampshire, along with other states in New England, has among the highest bladder cancer mortality rates in the country. Therefore, we are conducting a population-based epidemiologic study in New Hampshire (1) to assess the risk of skin and bladder cancer associated with arsenic exposure in a US population, (2) to evaluate methods of quantifying individual exposure to arsenic at low to moderate levels, and (3) to explore alternative models of determining the dose-response relationship at the lower end of exposure. Our findings to date indicate that toenail arsenic concentrations are a reliable, long-term biomarker of total arsenic exposure and reflect arsenic intake by drinking water containing 1 microgram/l or more. We found that urinary arsenic cannot be detected consistently in a population for which drinking water arsenic is primarily below 50 micrograms/l. Lastly, our data suggest that use of a biologic marker along with alternative statistical approaches may aid detection of the levels at which arsenic may affect cancer occurrence in the US.

Adult↗

A controlled trial of methods for managing pain in primary care patients with or without co-occurring psychosocial problems.

PURPOSE: Pain, a common reason for visits to primary care physicians, is often not well managed. The objective of this study was to determine the effectiveness of pain management interventions suitable for primary care physicians. METHODS: Patients from 14 rural primary care practices (47 physicians) who reported diverse pain problems with (n = 644) or without (n = 693) psychosocial problems were randomized to usual-care or intervention groups. All patients in the intervention group received information tailored to their problems and concerns (INFO). These patients' physicians received feedback about their patients' problems and concerns (FEED). A nurse-educator (NE) telephoned patients with pain and psychosocial problems to teach problem-solving strategies and basic pain management skills. Outcomes were assessed with the Medical Outcomes Study 36-Item Short-Form and the Functional Interference Estimate at baseline, 6 months, and 12 months. RESULTS: Patients with pain and psychosocial problems randomized to INFOFEED+NE significantly improved on the bodily pain (P = .011), role physical (P = .025), vitality (P <.001), role emotional (P = .048), and the Functional Interference Estimate (P = .027) scales compared with usual-care patients at 6 months. These improvements were maintained at the 12-month assessment even though these patients had received, on average, only 3 telephone calls. Compared with usual-care patients, at 6 months patients who received INFOFEED alone experienced minimal improvements that were not sustained at the 12-month assessment. CONCLUSIONS: For patients with pain and psychosocial problems, telephone-based assistance resulted in significant, sustained benefit in pain and psychosocial problems.

Adult↗